body, div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, form, fieldset, legend, input, textarea, button, p, blockquote, th, td{margin: 0;padding: 0;}
body{text-align: center;font-family: "Helvetica Neue",Helvetica,Arial,"Microsoft Yahei","Hiragino Sans GB","Heiti SC","WenQuanYi Micro Hei",sans-serif;}
ul,ol,li{ list-style: none;}
a{text-decoration: none;}
.clear{
    overflow: hidden;
    clear: both;
}